Question: There are 100 counties in a particular state. The average number of traffic accidents per week is four for each county. Find an approximation to

There are 100 counties in a particular state. The average number

of traffic accidents per week is four for each county. Find an approximation to the

probability that there are more than 450 traffic accidents in the state in one week.

Result should be 0.58, not 0.62. Please give specific explainations.

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